Solved by deepthinking

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#Level Title # Solved Avg. Tries Random

#	Title	# Solved	Avg. Tries
30802	Welcome Kit	9,261	1.87
30804	Fruit Tanghulu	3,232	2.93
30805	Lexicographically Largest Common Subsequence	1,191	3.18
31403	$A + B - C$	10,793	1.59
32069	가로등	463	3.88